Construction materials testing
Aggregate Impact Value Tester
A drop-hammer machine that strikes a cup of coarse aggregate 15 times and measures how much it breaks into fines. The result, the aggregate impact value (AIV), shows the aggregate's toughness.
- Construction materials testing
- Road and highway construction
- Quarries and crushers
- Ready-mix concrete
- Academic labs
PREVENTIVE MAINTENANCE
Maintenance checklist
Each use
- Clean cup, hammer face and guides
- Check the hammer slides freely
Monthly
- Lightly oil guide columns (wipe off excess)
- Check bolts holding the cup and base
Annual
- Hammer mass and drop height check
- Check cup and measure dimensions
- Check sieves for damage
SAFETY
Safety precautions
Before you work on the AIV tester
- Keep hands and fingers clear of the hammer path; use the locking pin when the hammer is raised.
- Wear safety glasses; aggregate chips can fly.
- Wear safety shoes; the hammer and base are heavy.
In LimsPulse · Calibration Management
Keep every AIV tester in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.